The three Quinnipiac University CBS/New York Times swing state polls released this morning, like the three released last week, capture the consistency of attitudes shaping the presidential race in battlegrounds across the country-while also recording movement among one key group of voters.

Even with one big surprise in the results-Mitt Romney's lead in Colorado, a state that in many ways embodies the modern Democratic electoral coalition-the polls mostly show voters across the six states this year dividing in consistent patterns largely familiar from 2008 (and indeed from elections since 1992).